You can expect more new breakthroughs in our clocks in the next five to 10 years." In terms of stability, the new clock equals the performance of NIST's world-leading ytterbium atomic clock.
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Ytterbium was discovered in 1878, but until it recently became useful in atomic clocks, the soft metal rarely made the news. Now ytterbium has a new claim to scientific fame. Measurements with ytterbium-174, an isotope with 70 …
The two experimental atomic clocks have set a new record for accuracy ... The atomic clocks are based on thousands of ytterbium atoms cooled to ten millionths of a degree above absolute zero – the coldest temperature possible – and …
Atomic clocks are already the most accurate timepieces ... lasers that simultaneously trap and measure about 10,000 super-cooled ytterbium atoms to make a so-called optical lattice clock (like the one built this year by researchers at …
Ultrastable clock In the current study, Ludlow and his colleagues cooled 10,000 ytterbium atoms to 10 Microkelvin ... Testing basic physics If the new technology can be incorporated into an atomic clock, it could provide incredibly …
The ultimate accessory in exact timekeeping — the atomic clock — is set to become even more precise, after ultrashort laser pulses were successfully transmitted across open air to help synchronize the "ticking" of new optical atomic
This is one reason Essen used the element to make the first of the next generation of clocks - the "atomic" clocks ... We now have new ways of measuring time. At NPL they are experimenting with the elements strontium and ytterbium
While the optical clock at NIST uses a single, cooled mercury ion, researchers at Webster's lab, for example, are developing an optical clock based on an ytterbium ion ... an ever-expanding universe. Although atomic clocks are …
German scientists have built an even more accurate atomic clock, using atoms of ytterbium, that should not lose a …